SU1488210A1 - Device for mounting tyre onto vehicle wheel rim - Google Patents

Description

The invention relates to the mechanization of assembly operations

and can be used to mount tires on a wheel rim, in particular baby strollers. The purpose of the invention is the installation of tires with different configuration of the landing surface -. ti. In the axial bore of the housing 1 is placed a drive rod 4 with a support 5 and a mandrel in the form of a rod 6. Support 5 has lugs 7. Spring-loaded cams 10 with clamps 13 and holes are mounted in housing 1 with the ability to interact with the support 5 and move the Grippers 13 in the radial direction . The housing 1 has a window 3 and a cavity 2 between the cams 10. The axis 8 of the housing 1 'is inclined to the plane of its base. The tire is mounted on the claws 13 of the cams 10, and the rim is mounted on the rod 6 of the support 5 through the window 3 into the cavity 2 of the housing 1; When working stroke 4 grippers 13 Cams 10 diverge. The protrusions 7 of the support 5 enter into the holes of the cams 10 and move the tire from the grippers 13 to the wheel rim. During the return stroke, the assembled wheel rests against the claws 13 and the device is automatically removed. 2 hp f-ly, 3 ill.

1

1488210 A1

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1488210 ’

The invention relates to the mechanization of assembly operations and can be used for mounting the tire on the wheel rim, in particular, baby strollers.

The purpose of the invention is to provide the possibility of mounting tires with different configuration of the seating surface.

In FIG. 1 shows the proposed U device in one of the moments of the working cycle, axial section; in FIG. 2, view A in FIG. one; in fig. 3 - cams version.

The device comprises a housing 1c 15 with a cavity 2 and a window 3, a drive rod 4, a support 5, a mandrel for the rim in the form of a threaded rod 6, a tire pusher in the form of protrusions 7 on the support 5, as well as spring-loaded cams. Axis 8 20

^ The device is inclined to the "horizontal surface at an angle e £. The cams (Fig. 1) are spring-loaded with springs 9 and are made in the form of sliders 10, having working sections 11 and 12, clamps 13 and holes 14.

Cams (Fig. 3) can be spring-loaded spring 15 and made in the form installed on the axes 16 of the levers 17, having working areas.

18 and 19, the grippers 20 and the holes (not indicated).

The device works as follows.

In the initial position, the rod 6 ^ 5

is located in the lower part of the cavity 2, and the grippers 13 of the sliders 10 are reduced to the center by the action of the springs 9. The tire (not marked) is mounted on the grips 13, and the rim (not marked) is inserted into the cavity 2 through the window 3 and mounted on the rod 6. When moving the rod 4 to the upper position, the support 5 first interacts with the sections 11 of the cams. When this captures 13 diverge, increasing the diameter of the seating surface of the tire. Then the support 5 is in contact with the sections 12. In this case, the grippers 13 hold the tire in an extended position, the protrusions 7 enter into the holes 14 and, when the rim with the tire groove is located between the grips 13,

come into contact with the tire (figure 1),

h about 55

which moves with the grip 13 and is installed in the groove of the rim.

If the wheel contains a tire with sides, covering the rim, then on the grippers 13 have the lower bead of the tire. When removing it from the grippers 13, the rim first abuts against the unstretched bead of the tire, increasing the distance between the beads, and then the protrusions 7 act on the stretched bead, preventing an excessive increase in the distance between the beads, which ensures high quality of installation.

In another embodiment of the cams (FIG. 3), the levers 17 in the initial position are collapsed under the action of the spring 15. When the moving support 5 interacts with the portions 18, the levers 17 rotate around the axes 16, and the grippers 20 move in the radial direction. When the support 5 contacts the portions 19 ‘, the grippers 20 are separated and the protrusions 7 can enter into the openings of the cams.

Claims (3)

Claim 1. A device for mounting a tire on a rim of a vehicle wheel, comprising a housing with an internal cavity, a window in the wall for mounting a rim and a hole in which a drive rod is placed with a possibility of movement along its axis inclined to a horizontal surface, at the end of which a support is made with a mandrel for a rim mounted on it, located in the extreme positions above and below the plane of the grippers for the tire, spring-loaded along the axis of the cams with the grips with mounting surfaces for a tire mounted on the body with the possibility of interaction of their working surfaces having sections parallel and inclined to the axis of the rod with support and movement in the radial direction, characterized in that, in order to ensure the possibility of mounting tires with a different configuration of the seating surface, the support is made with tire pushers in the form of circumferentially protrusions on its upper end, and the cams are made with openings for accommodating the said protrusions whose axes are located More from the stock axis than the seating surfaces * of the grippers. 2. The device according to claim 1, about the t i l and ya with the fact that the cams are made in the form of sliders moving in the radial direction. ° 1488210 ^s 3. The device according to claim 1, about t and i is the possibility of adjusting it caused by the fact that mandrels along the stem axis for the rim mounted on a pole with position 2 1488210 Fi.Z